Valves for steam engine with rotating piston and drive thereof

ABSTRACT

Valves ( 1 ) for steam engine with rotating piston and drive thereof the cylinder rotary body ( 3 ) with the cavity ( 31 ) is placed in the casing whereof ( 2 ). The rotary body ( 3 ) contains at least one body opening ( 32 ) along the circumference thereof and the casing ( 2 ) contains at least one pipe opening ( 24 ) and at least one engine opening ( 25 ) for ensuring pass-over of propulsion medium between the pipe ( 6 ) and the engine. The valve wheel ( 8 ) connected to the drive gear ( 9 ) designated for driving the valve ( 1 ) is mounted on the back shaft ( 4 ). The drive gear ( 9 ) consists of at least one circulating drive element ( 93 ) connected to the drive wheel ( 91 ), the valve wheels ( 8 ), at least one tensioner ( 95 ) and at least one vibration damper ( 94 ).

TECHNICAL FIELD

The present invention relates to valves for steam engine with rotatingpiston designated for conversion of steam energy to mechanical energyand drive thereof.

BACKGROUND ART

Present known valves for steam engine with rotating piston and drivethereof are in particular valves controlled through control box, bymeans of electromagnetic power. However, these designs are considerablygeneral.

The DE19940088A1 document deals with valves only in very generalmanner—as electromagnetic one. The shortcoming of this design is that itis too general, expensive and with low lifetime, while it does not dealwith specific design of the valve body at all.

The DE4119242A1 document broadly describes pairs of valves mechanisms(inlet and outlet), controlled by control unit. This means that they arecontrolled by electro-magnetic power and driven by electromagneticenergy or compressed air. This design is relatively expensive with shortlifetime. At the same time, this document does not deal with specificdesign of the valve body.

The U.S. Pat. No. 5,410,998 document deals with feeding and injectingworking medium not through electromagnetic valve, but through slidingmechanism. This sliding mechanism—valve—is very similar to classic valvein a petrol engine. Disadvantage of this design is that it is relativelycomplicated, hardly realizable. At the same time, according to hightemperatures and problematic lubricating, the lifetime of slidingmechanism is relatively limited.

The W02009/005480A1 document designs valves as rotary bodies, drivethereof by means of electromagnetic power, or mechanically—by means of abelt, or a chain, or cogwheels. However, this application does not dealwith specific design of valve body and specific manners of connectingvalves with the engine shaft.

DISCLOSURE OF INVENTION

Mentioned shortcoming are eliminated to the substantial degree by valvesfor steam engine with rotating piston and drive thereof, according tothe present invention, the substance whereof resides in that thecylindrical rotary body with the cavity is fitted in their casing,concentrically mounted on the back shaft, which is fitted in at leastone back bearing fitted in the casing, while the rotary bodyincorporates at least one body opening along circumference thereof andthe casing incorporates at least one pipe opening and at least oneengine opening for ensuring pass-over of propelling medium between thepipe and the engine and there is the valve wheel connected to the drivegear mounted on the back shaft.

The cavity of the rotary body is advantageously opened from the frontside and the front flange of the casing is inserted by its inner partand fits into the inside of the cavity and at least one pipe opening islocated on the inner circumference part of the front flange and the pipeis connected to the outside part of the front flange and at least oneengine opening is located on the casing box.

The cavity of the rotary body is advantageously closed from the frontside and the rotary body is concentrically mounted from the front sideon the front shaft, which is fitted in at least one front bearing fittedin closed front flange of the casing and the pipe opening and at leastone engine opening are located on the casing box, while a pipe isattached to the pipe opening.

The back bearing is advantageously secured by the bearing encapsulationby means of the sealing flange mounted on the back shaft and the fillingmounted on the back flange and the back bearing fitting tightly to thesealing flange, while there is the valve wheel mounted on the sealingflange from the other side, secured by securing element and nut, whichare mounted on the back shaft and the bearing encapsulation is coveredby its sealing cover mounted on the back flange and fitting tightly tothe valve wheel.

Drive gear consists of at least one circulating drive element connectedto the drive wheel, the valve wheels, at least one tensioner and atleast one vibration damper.

Circulating drive element is advantageously a chain or a belt.

The drive gear advantageously consists of four valve wheels placed invertexes of an orthogon and the drive wheel located in the middle amongthem, while the circulating drive element runs from the drive wheelthrough at least one tensioner to the first valve wheel, then alongcircumference of an orthogon to another three valve wheels and then backto the drive wheel, while it runs through at least one vibration damper.

The drive gear advantageously consists of four valve wheels placed invertexes of an orthogon and the drive wheel located in the middle amongthem, while the first circulating drive element runs from the drivewheel through first tensioner to the first valve wheel, then to thesecond valve wheel and back to the drive wheel, and the secondcirculating drive element runs from the drive wheel through the secondtensioner to the third valve wheel, then to the fourth valve wheel andback to the drive wheel, while both circulating drive elements run alsothrough at least one vibration damper.

At least one circulating drive element is advantageously connected to atleast one auxiliary wheel.

The drive gear advantageously consists of two valve wheels and the drivewheel located in the middle among them, while the circulating driveelement runs from the drive wheel through tensioner to the first valvewheel, then through auxiliary wheel to the second valve wheel and backto the drive wheel, while it runs also through at least one vibrationdamper.

Advantages of described design are in particular that such design ofvalves and drive thereof by the drive gear is simple, easy to realize,cheap, reliable and with long lifetime. Another advantage is thepossibility of regulation of filling by means of securing element.

BRIEF DESCRIPTION OF DRAWINGS

The solution is further elucidated on enclosed drawings, where:

The FIG. 1 a shows the valve in longitudinal section with one engineopening, where the pipe is connected concentrically with the rotationaxis.

The FIG. 1 b shows the valve in cross-section with one engine opening,where the pipe is connected concentrically with the rotation axis.

The FIG. 2 a shows the valve in longitudinal section with one engineopening, where the pipe is connected perpendicularly to the rotationaxis.

The FIG. 2 b shows the valve in cross-section with one engine opening,where the pipe is connected perpendicularly to the rotation axis.

The FIG. 3 a shows the valve in longitudinal section with two engineopenings, where the pipe is connected concentrically with the rotationaxis.

The FIG. 3 b shows the valve with two engine openings in cross-sectionthrough first engine opening, where the pipe is connected concentricallywith the rotation axis.

The FIG. 3 c shows the valve with two engine openings in cross-sectionthrough second engine opening, where the pipe is connectedconcentrically with the rotation axis.

The FIG. 4 a shows the valve in longitudinal section with two engineopenings, where the pipe is connected perpendicularly to the rotationaxis.

The FIG. 4 b shows the valve with two engine openings in cross-sectionthrough first engine opening, where the pipe is connectedperpendicularly to the rotation axis.

The FIG. 4 c shows the valve with two engine openings in cross-sectionthrough second engine opening, where the pipe is connectedperpendicularly to the rotation axis.

The FIG. 5 shows disassembled valve with one engine opening, where thepipe is connected concentrically with the rotation axis.

The FIG. 6 shows the drive gear with four valve wheels connected intoone cir- culating drive element.

The FIG. 7 shows the drive gear with four valve wheels connected intotwo circulating drive elements.

The FIG. 8 shows the drive gear with two valve wheels connected into onecirculating drive element.

MODE(S) FOR CARRYING OUT THE INVENTION Mode 1

The FIG. 1 shows the valve 1 with one engine opening 25, where the pipe6 is connected concentrically with the rotation axis. The casing 2consists of the box 21, which is closed by the front flange 22 from thefront side and by the back flange 23 from the back side. The cylindricalrotary body 3 with the cavity 31, which is concentrically mounted on theback shaft 4, is fitted in revolving manner in the casing 2. That isfitted in the back bearing 41 mounted on the back flange 23. The cavity31 of the rotary body 3 is opened from the front side and the frontflange 22 is inserted by its inner part and fits into the inside of thecavity 31. The pipe 6 is connected to the outside part of the frontflange 22. The pipe opening 24 is located on the inner circumferencepart of the front flange 22, the body opening 32 is located on thecircumference of the rotary body 3 and the engine opening 25 is locatedon the box 21, while all three openings are located on the same rotationpath. These openings serve for ensuring pass-over of propulsion mediumbetween the pipe 6 and the engine. The back bearing 41 is secured by thebearing encapsulation 7 by means of the sealing flange 71 mounted on theback shaft 4 and the filling 72 mounted on the back flange 23. Valvewheel 8 secured by the securing element 81, consisting of frictionalcasing and nut 82, which are mounted on the back shaft 4, are mounted onthe sealing flange 71 from the other side. The bearing encapsulation 7is covered by its sealing cover 73 mounted on the back flange 23 andfitting tightly to the valve wheel 8. Four described valves 1 areconnected to the drive gear 9 by means of their valve wheels 8 (FIG. 6).Two valves 1 are connected as inlet valves 1 to inlets of the engine andtwo valves as outlet valves 1 to outlets of the engine. Four valvewheels 8 are placed in the drive gear 9 in vertexes of an orthogon andthe drive wheel 91 is placed in the middle among them. The circulatingdrive element 93, which consists of chain, runs from the drive wheel 91through the tensioner 95 to the first valve wheel 8. Then it runs alongcircumference of an orthogon to other three valve wheels 8, while itruns between every two valve wheels 8 through one vibration damper 94.It continues from the fourth valve wheel 8 through last vibration damper94 back to the drive wheel 91.

The drive wheel 91 transfers torque through the circulating driveelement 93 to the valve wheels 8 of all four valves. The torque istransferred on each valve 1 from the valve wheel 8 through the sealingflange 71, the securing element 81 and the back shaft 4 to the rotarybody 3. By turning the rotary body 3, regular timed overlapping of thepipe opening 24, the body opening 32 and the engine opening 25 occurs.Thereby regular timed release and closing of propulsion medium betweenthe engine and the pipe 6 occur. In case of inlet valves 1 connected toinlets of the engine, there is release in the direction from the pipe 6into the engine and in case of outlet valves 1 connected to outlets ofthe engine, there is release in the direction from the engine to thepipe 6.

Mode 2

The FIG. 3 shows the valve 1 with two engine openings 25, where the pipe6 is connected concentrically with the rotation axis. This valve 1 isdesignated for the engine with two rotating pistons. The design of thisvalve 1 contains all elements as described in the example 1 with suchdifference, that it contains also one trio of openings, namely thesecond pipe opening 24 on the inner circumference part of the frontflange 22, the second body opening 32 on the circumference of the rotarybody 3 and the second engine opening 25 on the box 21, while theseopenings are located in the same rotation path, which is shiftedcompared to the rotation path of the first trio of openings. The secondpipe opening 24 is located in the same angle of turn as the first pipeopening 24. The second engine opening 25 is also located in the sameangle of turn as the first engine opening 25. The second body opening 32is turned by 180° angle compared to the first body opening 32.

Transfer of the torque between the drive wheel 91 and the rotary bodies3 in the example 2 is the same as in the example 1 (FIG. 6). By turningthe rotary body 3, regular timed overlapping of first pipe opening 24,first body opening 32 and first engine opening 25 on first rotation pathand second pipe opening 24, second body opening 32 and second engineopening 25 on second rotation path, occur. Thereby regular timed releaseand closing of propulsion medium between the engine and the pipe 6occur. Each rotation path appertains to other piston of the engine.Therefore mutual timing of paths is shifted.

Mode 3

The FIG. 2 shows the valve 1 with one engine opening 25, where the pipe6 is connected perpendicularly to the rotation axis. The casing 2consists of the box 21, which is closed by the front flange 22 from thefront side and by the back flange 23 from the back side. The cylindricalrotary body 3 with the cavity 31, which is concentrically mounted on theback shaft 4, is fitted in revolving manner in the casing 2. That isfitted in the back bearing 41 mounted on the back flange 23. The cavity31 of the rotary body 3 is closed from the front side and the rotarybody 3 is fitted from the front side concentrically on the front shaft5, which is mounted on the front bearing 51 fitted in closed frontflange 22. There is the pipe opening 24 and the engine opening 25, whichare mutually turned by 180°, on the box 21. There are two body openings32, which are also mutually turned by 180°, on the circumference of therotary body 3. The pipe opening 24 and the first body opening 32 arelocated on first rotation path and the engine opening 25 and the secondbody opening 32 are located on the second rotation path, which isshifted compared to the first rotation path. The pipe 6 is connected tothe pipe opening 24. These openings serve for ensuring pass-over ofpropulsion medium between the pipe 6 and the engine. The back bearing 41is secured by the bearing encapsulation 7 by means of the sealing flange71 mounted on the back shaft 4 and the filling 72 mounted on the backflange 23. The valve wheel 8 secured by the securing element 81,consisting of toothing and nut 82, which are mounted on back shaft 4,are mounted on the sealing flange 71 from the other side. The bearingencapsulation 7 is covered by its sealing cover 73 mounted on the backflange 23 and fitting tightly to the valve wheel 8. Four describedvalves 1 are connected to the drive gear 9 by means of their valvewheels 8 (FIG. 7). Two valves 1 are connected as inlet valves 1 toinlets of the engine and two valves as outlet valves 1 to outlets of theengine. Four valve wheels 8 are placed in the drive gear 9 in vertexesof an orthogon and the drive wheel 91 is placed in the middle amongthem. First circulating drive element 93, consisting of a belt, runsfrom the drive wheel 91 through the first tensioner 95 to the firstvalve wheel 8, then to the second valve wheel 8 through the firstvibration damper 94 and through the second vibration damper 94 back tothe drive wheel 91, and the second cir- culating drive element 93,consisting also of a belt, runs from the drive wheel 91 through thesecond tensioner 95 to the third valve wheel 8, then through the thirdvibration damper 94 to the fourth valve wheel 8 and through the fourthvibration damper 94 back to the drive wheel 91.

The drive wheel 91 transfers torque through two circulating driveelements 93 to the valve wheels 8 of all four valves. The torque istransferred on each valve 1 from the valve wheel 8 through the sealingflange 71, the securing element 81 and the back shaft 4 to the rotarybody 3. By turning the rotary body 3, regular timed overlapping of thepipe opening 24 and the first body opening 32 on the first rotation pathand the second engine opening 25 and the second body opening 32 onsecond rotation path occur simultaneously. Thereby regular timed releaseand closing of propulsion medium between the engine and the pipe 6occur. In case of inlet valves 1 connected to inlets of the engine,there is release in the direction from the pipe 6 into the engine and incase of outlet valves 1 connected to outlets of the engine, there isrelease in the direction from the engine to the pipe 6.

Mode 4

The FIG. 4 shows the valve 1 with two engine openings 25, where the pipe6 is connected perpendicularly to the rotation axis. This valve 1 isdesignated for the engine with two rotating pistons. The design of thisvalve 1 contains all elements as described in the example 3 with suchdifference that it contains one more pair of openings located in thirdrotation path shifted compared to first two rotation paths. Theseopenings are the second engine opening 25 located on the box 21 in thesame angle of turn as the first engine opening 25 and the third bodyopening 32 located on the circumference of the rotary body 3 turned bythe angle of 180° compared to the second body opening 32. Furthermore,there is fourth body opening 32 turned by 180° compared to the firstbody opening 32 in the first rotation path.

Transfer of the torque between the drive wheel 91 and the rotary bodies3 in the example 4 is the same as in the example 3 (FIG. 7). By turningthe rotary body 3, regular timed overlapping of the pipe opening 24 andfirst and fourth body openings 32 on first rotation path, first engineopening 25 and second body opening 32 on second rotation path and secondengine opening 25 and third body opening 32 on third rotation pathoccur. Thereby regular timed release and closing of propulsion mediumbetween the engine and the pipe 6 occur. Second and third rotation pathsappertain to other piston of the engine. Therefore mutual timing ofpaths is shifted.

Mode 5

The FIG. 8 shows the drive gear 9, where two valves 1 are connected asinlet valves 1 by means of their valve wheels 8. The drive wheel 91 islocated between these two valve wheels 8. The circulating drive element93, consisting of a belt, runs from the drive wheel 91 through thetensioner 95 and the first vibration damper 94 to the first valve wheel8, then through the auxiliary wheel 92 and the second vibration damper94 to the second valve wheel 8 and through third vibration damper 94back to the drive wheel 91.

The drive wheel 91 transfers torque through circulating drive element 93to the valve wheels 8 of both valves 1.

Given examples does not include all possible embodiments of the design.

1. Valves for steam engine with rotating piston and drive thereofcharacterized in that cylindrical rotary body (3) with the cavity (31)is fitted in their casing (2), concentrically mounted on the back shaft(4), which is fitted in at least one back bearing (41) fitted in thecasing (2), while the rotary body (3) incorporates at least one bodyopening (32) along the circumference thereof and the casing (2)incorporates at least one pipe opening (24) and at least one engineopening (25) for ensuring pass-over of propelling medium between thepipe (6) and the engine and there is the valve wheel (8) connected tothe drive gear (9) mounted on the back shaft (4) for ensuring drive ofthe valve (1).
 2. Valves according to the claim 1, characterized in thatthe cavity (31) of their rotary body (3) is opened from the front sideand the front flange (22) of the casing (2) is inserted by its innerpart and fits into inside of the cavity (31) and at least one pipeopening (24) is located on the inner circumference part of the frontflange (22) and the pipe (6) is connected to the outside part of thefront flange (22) and at least one engine opening (25) is located on thebox (21) of the casing (2).
 3. Valves according to the claim 1,characterized in that the cavity (31) of their rotary body (3) is closedfrom the front side and the rotary body (3) is concentrically mountedfrom the front side on the front shaft (5), which is fitted in at leastone front bearing (51) fitted in closed front flange (22) of the casing(2) and the pipe opening (24) and at least one engine opening (25) arelocated on the box (21) of the casing (2), while the pipe (6) isattached to the pipe opening (24).
 4. Valves according to any of claims1 to 3, characterized in that their back bearing (41) is secured by thebearing encapsulation (7) by means of the sealing flange (71) mounted onthe back shaft (4) and the filling (72) mounted on the back flange (23)of the casing (2), while there is the valve wheel (8) mounted on thesealing flange (71) from the other side and secured by the securingelement (81) and the nut (82), which are mounted on the back shaft (4)and the bearing encapsulation (7) is covered by its sealing cover (73)mounted on the back flange (23) and fitting tightly to the valve wheel(8).
 5. Valves according to any of claims 1 to 4, characterized in thattheir drive gear (9) consists of at least one circulating drive element(93) connected to the drive wheel (91), the valve wheels (8), at leastone tensioner (95) and at least one vibration damper (94).
 6. Valvesaccording to the claim 5, characterized in that the circulating driveelement (93) is a chain or a belt.
 7. Valves according to claims 5 and6, characterized in that their drive gear (9) consists of four valvewheels (8) placed in vertexes of an orthogon and the drive wheel (91) isplaced in the middle among them, while the circulating drive element(93) runs from the drive wheel (91) through at least one tensioner (95)to the first valve wheel (8), then along circumference of an orthogon toanother three valve wheels (8) and then back to the drive wheel (91),while it runs through at least one vibration damper (94).
 8. Valvesaccording to claims 5 and 6, characterized in that their drive gear (9)consists of four valve wheels (8) placed in vertexes of an orthogon andthe drive wheel (91) located in the middle among them, while firstcirculating drive element (93) runs from the drive wheel (91) throughthe first tensioner (95) to the first valve wheel (8), then to thesecond valve wheel (8) and back to the drive wheel (91), and the secondcirculating drive element (93) runs from the drive wheel (91) throughthe second tensioner (95) to the third valve wheel (8), then to thefourth valve wheel (8) and back to the drive wheel (91), while bothcirculating drive elements (93) run also through at least one vibrationdamper (94).
 9. Valves according to claims 5 and 6, characterized inthat at least one circulating drive element (93) is connected to atleast one auxiliary wheel (92).
 10. Valves according to claims 5, 6 and9, characterized in that their drive gear (9) consist of two valvewheels (8) and the drive wheel (91) placed in the middle among them,while the circulating drive element (93) runs from the drive wheel (91)through the tensioner (95) to the first valve wheel (8), then throughthe auxiliary wheel (92) to the second valve wheel (8) and back to thedrive wheel (91), while it runs also through at least one vibrationdamper (94).